Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5657270 | Electrically erasable programmable read-only memory with threshold value controller for data programming | Kazunori Ohuchi, Tomoharu Tanaka, Yoshihisa Iwata, Yasuo Itoh, Fujio Masuoka | 1997-08-12 |
| 5615163 | Semiconductor memory device | Koji Sakui, Hiroshi Nakamura, Tomoharu Tanaka, Fujio Masuoka, Takehiro Hasegawa | 1997-03-25 |
| 5615165 | Non-volatile semiconductor memory device and memory system using the same | Tomoharu Tanaka, Hideo Kato, Hiroto Nakai, Yoshiyuki Tanaka, Riichiro Shirota +8 more | 1997-03-25 |
| 5591999 | Electrically erasable programmable read only memory device with an improved memory cell pattern layout | Junichi Miyamoto, Toshiharu Watanabe | 1997-01-07 |